番茄潜叶蛾高效内吸性杀虫剂筛选及灌根法用药对其生物学参数的影响  

Systemic pesticide screening and the effects of root drenching on the biological parameters of Tuta absoluta

作　　者：崔洪莹 夏小菊 魏倩彤 闫循静 李丽莉[1] 宋莹莹 郭文秀 吕素洪 门兴元[1] CUI Hong-Ying;XIA Xiao-Ju;WEI Qian-Tong;YAN Xun-Jing;LI Li-Li;SONG Ying-Ying;GUO Wen-Xiu;LÜ Su-Hong;MEN Xing-Yuan(Shandong Key Laboratory for Green Prevention and Control of Agricultural Pests,Institute of Plant Protection,Shandong Academy of Agricultural Sciences,Jinan 250100,China;College of Plant Protection,Nanjing Agricultural University,Nanjing 210095,China;Shiqiao Town Agricultural Comprehensive Service Center,Jining Beihu Provincial Tourism Resort,Jining 272000,China)

机构地区：[1]山东省农业科学院植物保护研究所,山东省农业有害生物绿色防控重点实验室,济南250100 [2]南京农业大学植物保护学院,南京210095 [3]济宁北湖省级旅游度假区石桥镇农业综合服务中心,济宁272000

出　　处：《应用昆虫学报》2024年第4期765-771,共7页Chinese Journal of Applied Entomology

基　　金：2024农业科技创新工程-国内高层次人才引进与培养科研启动项目(333工程)(06202214442066)。

摘　　要：【目的】明确内吸性杀虫剂对番茄潜叶蛾Tuta absoluta生长发育和存活的影响,为其田间应用提供理论依据。【方法】采用室内毒力测定法,评估7种内吸性农药对番茄潜叶蛾的毒力效果,并利用灌根法测定内吸性杀虫剂对番茄潜叶蛾生物学参数的影响。【结果】氯虫苯甲酰胺、溴氰虫酰胺和四氯虫酰胺对番茄潜叶蛾幼虫具有较高毒力,其LC_(50)值分别为0.226、2.01和26.27mga.i./L;番茄苗期,溴氰虫酰胺、氯虫苯甲酰胺和四氯虫酰胺的灌根处理显著影响了番茄潜叶蛾的幼虫发育历期、蛹期和成虫寿命,尤其在2倍LC_(90)浓度处理下,番茄潜叶蛾卵全部死亡,不能正常孵化为幼虫,其发育天数均为0;该3种药剂的灌根处理显著降低了番茄潜叶蛾的卵孵化率、化蛹率及羽化率,在2倍LC_(90)浓度下,可使得番茄潜叶蛾在造成危害前即全部死亡。【结论】3种内吸性杀虫剂(溴氰虫酰胺、氯虫苯甲酰胺和四氯虫酰胺)的灌根处理可使番茄苗成为“引诱陷阱”,预防早期番茄潜叶蛾的发生与为害,这种降低早期种群数量的措施极大降低了番茄潜叶蛾潜在的暴发风险,为科学治理番茄潜叶蛾提供了新方法。[Aim]To investigate the effects of systemic pesticides on the development and survival of Tuta absoluta and thereby provide a theoretical basis for the application of these pesticides in the field.[Methods]The toxicity of 7 insecticides on T.absoluta were tested in the laboratory using the indoor virulence determination method and the effects of systemic pesticides on the biological parameters of T.absoluta were analyzed using root drenching.[Results]Cyantraniliprole,chlorantraniliprole,and tetrachlorantraniliprole were the most toxic of the pesticides tested,with LC_(50) values of 0.226,2.01,and 26.27 mg a.i./L,respectively.Root drenching with cyantraniliprole,chlorantraniliprole and tetrachlorantraniliprole at the tomato seedling stage significantly affected larval duration,pupal duration and adult survival,and eggs of T.absoluta died which could not hatch into larva normally,reducing this to zero at a concentration of 2-fold LC_(90).Moreover,root drenching with these three insecticides significantly reduced the hatching rate,pupation rate and eclosion rate;a concentration of 2-fold LC_(90) killed all insects before they could cause damage.[Conclusion]Drenching the roots of tomato seedlings with cyantraniliprole,chlorantraniliprole and tetrachlorantraniliprole completely prevents the occurrence of T.absoluta at the tomato seedling stage.This degree of suppression greatly reduces the outbreak risk,and is a new method for the scientific control of this pest.

关 键 词：番茄潜叶蛾 内吸性农药 灌根法 生物学参数 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]